#define _CRT_SECURE_NO_WARNINGS 1
#include<iostream>

using namespace std;

int main()
{
	int arr[100] = { 5,6,8,6,9,1,6,1,2,4,9,1,9,8,2,3,
		6,4,7,7,5,9,5,0,3,8,7,5,8,1,5,8,6,1,8,3,0,3,7,
		9,2,7,0,5,8,8,5,7,0,9,9,1,9,4,4,6,8,6,3,3,8,5,
		1,6,3,4,6,7,0,7,8,2,7,6,8,9,5,6,5,6,1,4,0,1,0,
		0,9,4,8,0,9,1,2,8,5,0,2,5,3,3 };
	int day_month[13] = { 0,31,28,31,30,31,30,31,31,30,31,30,31 };
	int ans = 0;
	for (int month = 1; month <= 12; month++)
	{
		for (int day = 1; day <= day_month[month]; day++)
		{
			int date[8] = { 2,0,2,3,month / 10,month % 10,day / 10,day % 10 };
			int k = 0;
			for (int i = 0; i < 100; i++)
			{
				if (arr[i] == date[k])
				{
					k++;
				}
				if (k == 8)
				{
					ans++;
					break;
				}
			}
		}
	}
	cout << ans << endl;
	return 0;
}